Given the matrix A = 9 -1 2 -18 and B =-5 -3 -2 -4 . Find (a) AB ( 3 marks) (b) A – 2B ( 3 marks) (c) AT

Q: If matrix A is 2 x 5 and the product AB is 2 x 4, then what is the order (or size) of B?

A: is a  matrix is  matrix.We have to find the order of

Q: If A is 4x4 matrix with det(A)=10, find det (24-¹A), det (A²).

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Q: If A is a 3x3 matrix and det(A) = 7, what is det(2A)?

A: Solution :-  Given : A is a 3×3 matrix               And det(A) =7

Q: Which matrix represents the system of equations below? [-2x-7y=3 7x-6y=12

A: System of equation

Q: Sally went to the store and purchased 2 skirts, 5 dresses and 5 shirts. Anna went to the store and…

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Q: Perform the row operations on the given augmented matrix

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Q: 2 4 If A 1 4 - [3³] and B = [2 56 [4 2 24 find matrix such that 2A + B + 4X=0

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Q: Write it in five step augmented matrix  -9x-5y=7 -6x-6y=2

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Q: Solve the system by using the inverse of the coefficient matrix. 2x1 + 6x2 = 26 5x1 + 6x2 = 20…

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Q: a) Find the inverse of the square matrix B: [2-4 B = 3 -1 7 0

A: The inverse of the matrix is given below :

Q: 2 -3 For matrix A = -2A? will be %3D -1 4

A: See the attachment.

Q: If possible, compute the following. If an answer does not exist, enter DNE. (A+B) + C = + A+ (B+ C)…

A: We have to solve the addition form of Matrix.

Q: Q1 (d): Find the rank of the matrix A. 1 0 5 0 1 -2 2 -2 -1 1 -6 3 -2 12 2 -3 0 2

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Q: If A is a 3 x3 matrix and det(A) =-3, what is det(4A)?

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Q: A'ina and Aliya go to the bookstore to buy books and pens. A'ina bought 5 Mathematic exercise books…

A: We have to form two equations based on the given information then we can form these equations into…

Q: [2 2 Give two different matrices B so that in each case B 2 2

A: Given matrix

Q: Given that −1=−4x−3y and −5=7x+6y, find the values of x and y using the inverse of a matrix. Give…

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Q: Q8: Given that -2 X = 1 8 -8 -9 -9,Z -7 7 -2. -8 5 what is the matrix 3X + Y – 3Z?

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Q: For matrixA = if g(X) = X2 +4x + 2, what is the answer to g(A)?

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Write the augmented coefficient matrix corresponding to the system: 7x + 4 = -7y 5x - y = -2 -4x -4…

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Q: Sally went to the store and purchased 4 skirts, 4 dresses and 5 shirts. Anna went to the store and…

A: The given data is: Sally went to store and purchased 4 skirts, 4 dresses, and 5 shirts Anna went to…

Q: Given 2. A and B = ( 4 Find the matrix represented by: (iii) 3(A – 4B) (iv) B+ 3AT

A: The given matrices are A=254-2  and B=-1724. (iii) Evaluate 3(A-4B) as follows.…

Q: Write the augmented matrix of the system -9x +92y -90z -33y +6z +28z -11x -63 -4 -79

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Q: Find cofactor C2,1 of the matrix -2 -1 -1 7 5 -1 -17 6 2 8 6 0 -2 5 80

A: Answer Is in step 2.

Q: For matrix A if g(X) = X² + 4x + 2, what is the answer to g(A)?

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Q: (33) -3 2 -1

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Q: (x-3y +3z = -8 7x+y +2z = 6 3x +2y - z = 4

A: Topic:- matrix

Q: 4 x x -4 3.) Solve for x: %3D 2 7 6. X -2

A: Explanation of the answer is as follows